.btn{
  display: inline-block;
  width: 220px;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 16px;
  color: #ffffff;
  background-color: $colorA;
}
//默认按钮
.btn-default{
  background-color: #B0B0B0;
  color:$colorG;
}
.btn-group{
  width: 275px;
  height: 50px;
  font-size: 16px;
  text-align: center;
  line-height: 50px;
  color: #ffffff;
  background-color: #FF6600;
}
